Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Question
Chapter 10, Problem 10.23QP
a)
To determine
Draw the graph between load and deflection using spread sheet.
b)
To determine
Plot the proportional limit on the graph.
c)
To determine
The modulus of rupture of the wood specimen.
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A wood specimen was prepared with actual dimensions of 25 mm * 25 mm *
150 mm and grain parallel to its length. Displacement was measured over a
100 mm gauge length. The specimen was subjected to compression parallel to
the grain to failure. The load-deformation results are as shown in Table P10.24.
TABLE P10.23
Deflection
Load (N)
(10 3 mm)
445
709
890
1412
1335
2113
1779
2825
2224
3556
2669
4234
3114
4935
3559
5644
4003
6353
4448
6995
4893
7996
5338
9131
5783
10287
6228
11902 (failure)
TABLE P10.2 4
Load (N)
Displacement (mm)
31
0.30
45
1.73
387
4.17
2358
4.57
7584
5.28
12740
5.99
16859
6.81
20489
7.62
23745
8.23
22757
9.14
19875
9.75
19265
10.5
a. Using a computer spreadsheet program, plot the stress-strain relationship.
b. Calculate the modulus of elasticity.
c. What is the failure stress?
In the figure below, a joint is made by gluing two plywood gussets of thickness t to wood boards. The tensile working stresses are 1245psi for the plywood and 725psi for the boards. The working shear stress for the glue is 52psi.
Determine the dimension b so that the joint is as strong as the boards.____________inches in 2 decimal places.
SOM 1. Show your detailed/correct solution.
Chapter 10 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 10 - What are the two main classes of wood? What is the...Ch. 10 - Prob. 10.2QPCh. 10 - Prob. 10.3QPCh. 10 - Discuss the anisotropic nature of wood. How does...Ch. 10 - Prob. 10.5QPCh. 10 - Prob. 10.6QPCh. 10 - Prob. 10.7QPCh. 10 - Prob. 10.8QPCh. 10 - Prob. 10.9QPCh. 10 - Prob. 10.10QP
Ch. 10 - Prob. 10.11QPCh. 10 - Prob. 10.12QPCh. 10 - Prob. 10.13QPCh. 10 - Prob. 10.14QPCh. 10 - Prob. 10.15QPCh. 10 - Prob. 10.16QPCh. 10 - Prob. 10.17QPCh. 10 - Prob. 10.18QPCh. 10 - Prob. 10.19QPCh. 10 - Prob. 10.20QPCh. 10 - Prob. 10.21QPCh. 10 - Prob. 10.22QPCh. 10 - Prob. 10.23QPCh. 10 - A wood specimen was prepared with actual...Ch. 10 - A pine wood specimen was prepared with actual...Ch. 10 - Prob. 10.26QPCh. 10 - Prob. 10.27QPCh. 10 - Prob. 10.28QPCh. 10 - Prob. 10.29QPCh. 10 - Prob. 10.30QPCh. 10 - Prob. 10.31QPCh. 10 - Prob. 10.32QPCh. 10 - Prob. 10.33QP
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